Surface properties of amino-functionalized poly(ε-caprolactone) membranes and the improvement of human mesenchymal stem cell behavior

► We prepared amino-functionalized PCL with different NH2 content. ► The amino groups endowed PCL with excellent surface hydrophilicity and morphology. ► hMSCs' adhesion, proliferation, and osteogenic differentiation were promoted. ► Cell behavior was significantly mediated by surface properties.